Philips 105S2 CM23 GSIII User manual

15" Auto scan Colour Monitor

Chassis

105S2 CM23 GSIII

Horizontal frequencies

30-60kHz

Service

TABLE OF CONTENTS

Published by BU Monitor Printed in Taiwan Copyright reserved Subject to modification Jun 23 2000 GB

3138 106 10107

105S21/89H

DDC/Power saving/MPR II/TCO99(optional)

Description Page

Important Safety Notice ------------------------------- 2

Technical Data ------------------------------------------ 3

Introduction ---------------------------------------------- 4

Warning and Notes------------------------------------- 13

Mechanical Instructions ------------------------------ 14

Wiring Diagram------------------------------------------15

DDC Instructions ---------------------------------- 16~19

Hex Data of DDC ---------------------------------- 20~21

Electrical Adjustments --------------------------- 22~24

Block Diagram------------------------------------------ 25

Video Panel C.B.A &Control Panel C.B.A----------26

OSD Menu tree structure------------------------------- 5

OSD Adjustments -----------------------------------6~12

Description Page

Video Panel(A) Schematic Diagram----------------27

Main Panel C.B.A.----------- ------------------------ --28

Repair Tips ---------------------------------------------- 33

parts list-------------------------------35

Spare parts list------------------------------------- 36~40

Repair flow chart----------------------------------- 41~48

General product specification------------------- 49~76

Safety test requirements-------------------------------77

Main Panel(B1) Schematic Diagram ----------------29

U_Control(B2)Schematic Diagram ------------------30

Power Supply(C)Schematic Diagram----------------31

Control Panel & Table (D)Schematic Diagram --- 32

Exploded View -------------------------------------------34

Recommended

REFER TO BACK COVER FOR IMPORTANT SAFETY GUIDELINES

CAUTION: USE A SEPARATE ISOLATION TRANSFORMER FOR THIS UNIT WHEN SERVICING.

ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS

AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC

EQUIPMENT CONTAINING HIGH VOLTAGES.

SAFETY NOTICE

Safety Checks

Fire and Shock H azard

Implosion

X-radiation

After the original swevice problem has been corrected,a complete safety

check

should be made. Be sure to check over the entire set, not just the areas

where you have worked. Some previous servicer may have left an unsafe

condition,which could be unknowingly passed on to your customer. Be sure

to check all of the following:

1. Be sure all components are positioned in such a way as to avoid the

possibility of adjacent component shorts. This is especially important

on those chassis which are transported to and feom the service shop.

2. Never release a repaired unit unless all protective devices such as

insulators, barries, covers, strain reliefs, and other hardware have been

installed in accordance with the original design.

3. Soldering and wiring must be inspected to locate possible cold solder

joints,solder splashes,sharp solder points, frayed leads, pinched leads,

or damaged insulation ( including the ac cord).Be certain to remove

loose solder balls and all other loose foreign particles.

4. Check across-the-line components and other components for physical

evidence of damage or deteriortion and replace if necessary. Follow

original layout,lead length, and dress.

5. No lead or component should touch a receiving tube or a resistor rated

at 1 watt or more. Lead tension around protruding metal surfaces or

edges must be avoided.

6. Critical components having special safety characteristics are identified

with ans bythe Ref. No. in the parts list and enclosed within a broken line

* (where seceral criticalcomponents are grouped in one area) along with

the safety symbols on the schematic diagrams and/or exploded views.

7. When servicing any unit, always use a seoparate isolation transformer

for the chassis Failure to use a separate isolation transformer may

exopose you to possible shock hazard, and may cause damage to

servicing instruments.

8. Many electronic products use a polarized ac line cord (one wide pin on

the plug.) Defeating this safety feature may create a potential hazard to

the service and the user. Extension cords which do not incorporate the

polarizing feature should never be used.

9. After reassembly of the unit, always perform an leakage test or resistance

test from the line cord to all exposed metal parts of the cabinet. Also check

all metal control shafts(with knobs removed), antenna terminals, handles,

screws, etc. to be sure the unit may be safety operted without danger of

electrical shock.

* Broken line

1. All picture tubes used in current model receivers are equipped with an

intergral implosion system. Care should always be used, and safety

glassesworn,whenever handling any picture tube. Avoid scratching or

other rwise damaging the picture tube during installation.

2. Use only replacement tubes specified by the manufacturer.

1. Be sure procedures and instructions to all your service personnel cover

the subject of X-radiation. Potential sources of X-rays in TV receivers are

the picture tube and the high voltage circuits. The basic precaution which

must be exercised is to keep the high voltage at the factory recommended

level.

2. To avoid possible exposure to X-radiation and electrical shock, only the

manufacturer's specified anode connectors must be used.

3. It is essential that the service technician has an accurate HV meter

available at all times. The calibration of this meter should be checked

periodically against a reference standard.

4. When the HV circuitry isoperating properly there is no possibility of an x-

radiation problem. High voltage should always be kept at the anufacture,s

rated value-no higher - for optimum performance. Every time a color set is

serviced, the brightness should be run up and down while monitoring the

HV with a meter to be certain that the HV is requlated correctlv and does

not exceed the specified value. We suggest that you and your technicians

review test procedures so that HV requation are always checked as a

standard servicing procedure, and the reason for this prudent routine is

cleary understood by everyone. It is important to use an accurate and

reliable HV meter. It is recommended that the HV recorded on each

customer's invoice, which will demonstrate a proper concern for the

customer's safety.

5. When troubleshooting and making test measurements in a receiver with

a problem of excessive high voltage, reduce the line voltage by means of

a Variac to bring the HV into acceptable limits while troubleshooting. Do

not operate the chassis longer than necessary to locate the cause of the

excessive HV.

:

WARNING OFF

SERVICE NOTE

Before removing the CRT anode cap, turn the unit and short the HIGH VOLTAGE to the CRT DAG ground.

The CRT DAG is not at chassis ground.

TELEVISION/MONITOR SAFETY GUIDELINES FOR THE PROFESSIONAL SERVICE TECHNICIAN

6. New picture tubes are specifically designed to withstand higher operathng

voltages without creating undesirable X-radiation. It is strongly

recommended that any shop test fixture which is to be used with the new

higher voltage chassis be equipped with one of the new type tubes

designed for this service.Addition of a permanently connected HV meter

to the shop test fixture is advisable. The CRT types used in these new

sets should never be replaced with any other types,as this may result in

excessive X-radiation.

7. It is essential to use the specified picture tube to avoid a possible X-diation

problem.

8. Most TV receivers contain some type of emergency "Hold Down" circuit to

pervent HV from rising to excessive levels in the presence of a failure

mode. These various circuits should be understood by all technicians

servicing them, especially since many hold down circuits are inoperative

as long as the receiver performs normally.

1. Unplug the ac line cord and connect a jumper between the two prongs of

the plug.

2. Turn on the power switch.

3. Measure the resistance value between the jumpered ac plug and all

exposed cabinet parts of the receiver, such as screw heads, antennas,

and control shafts.When the exposed metallic part has a return path to

the chassis, the reading should be between 1 megohm and 5.2 megohms.

When the exposed metal does not have a return path to thr chassis, the

reading must be infinity.Remove the jumper from the ac line cord.

1. Do not use an isolation transformer for this test. Plug the completely

reassembled receiver directly into the ac outlet.

2. Connect a 1.5k, 10w resistor paralleled by a 0.15uf. capacitor between

each exposed metallic cabinet part and a good earth ground such as a

water pipe, as shown above.

3. Use an ac voltmeter with at least 5000 ohmsy volt sensitivity to measure

the potential across the resistor.

4. The potential at any point should not exceed 0.75 volts. A leakage current

tester may be used to make this test; leakage current must not exceed

0.5 milliamps. If a measutement is outside of the specified limits, there is

a possibility of shock hazard. The receiver should be repaired and

rechecked before retutning it to the customer.

5. Repeat the above procedure with the ac plug reversed.( Note: An ac

adapter is necessary when a polarized plug is used. Do not defeat the

polarizing feature of the plug.)

The primary source of X-radiation in this television receiver is the picture

tube.The picturetube utilized in this chassis is specially constructed to limit

X-radiation emissions. For continued X-radiation protection, the replacement

tube must be the same type as the original, including suffix letter,or a Philips

approved tupe.

Many electrical and mechanical parts in Philips television sets have special

safety related charcteristics. These characteristics are often not evident from

visual inspection nor can the protection afforded by them necessarily be

obtained by using replacement components rated for higher voltage, wattage,

etc. The use of a substitute part which does not have the same safety

characteristics as the Philips recommended replacement part shown in this

service manual may create shock, fire, or other hazards

Leakage Current Cold Check

Leakage Current Hot Check

Picture Tube Replacement

Parts Replacement

1500 ohm, 10W

0.15 uF

WATER

PIPE

EARTH

GROUND

TO

INSTRUMENTS

EXPOSED

METAL PARTS

2

105S2 CM23 GSIII

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Proper service and repair is important to the safe, reliable

operation of all Philips Consumer Electronics Company**

Equipment. The service procedures recommended by

Philips and described in this service manual are effective

methods of performing service operations. Some of these

service operations require the use of tools specially designed

for the purpose. The special tools should be used when and

as recommended.

It is important to note that this manual contains various

CAUTIONS and NOTICES which should be carefully read in

order to minimize the risk of personal injury to service

personnel. The possibility exists that improper

service methods may damage the equipment. It also is

important to understand that these CAUTIONS and NOTICES

ARE NOT EXHAUSTIVE. Philips could not

possibly know, evaluate and advise the service trade of all

conceivable ways in which service might be done or of the

possible hazardous consequences of each way.

Consequently, Philips has not undertaken any such broad

evaluation. Accordingly, a servicer who uses a service

procedure or tool which is not recommended by Philips must

first satisfy himself thoroughly that neither his safety nor the

safe operation of the equipment will be jeopardized by the

service method selected.

* * Hereafter throughout this manual, Philips Consumer

Electronics Company will be referred to as Philips.

Critical components having special safety characteristics are

identified with a by the Ref. No. in the parts list and

enclosed within a broken line*

(where several critical components are grouped in one area)

along with the safety symbol on the schematics or

exploded views.

Use of substitute replacement parts which do not have the

same specified safety characteristics may create shock, fire,

or other hazards.

Under no circumstances should the original design be

modified or altered without written permission from Philips.

Philips assumes no liability, express or implied, arising out of

any unauthorized modification of design.

Servicer assumes all liability.

WARNING

* Broken Line

TO ENSURE THE CONTINUED RELIABILITY OF THIS

PRODUCT, USE ONLY ORIGINAL

MANUFACTURER'S REPLACEMENT PARTS, WHICH ARE

LISTED WITH THEIR PART

NUMBERS IN THE PARTS LIST SECTION OF THIS

SERVICE MANUAL.

IMPORTANT SAFETY NOTICE

3

105S2 CM23 GSIII

Technical Data

Pin assignment :

:The 15-pin D-sub connector(male) of the signal cable

Assignment

Pin No.

Ldentical output-

connected to pin 10

Ldentical output-

connected to pin 10

Blue video input

2

7

6

8

4

5

3

1

9

12

11

14

13

15

10

Red video ground

Blue video ground

Green video ground

Ground

No pin

Logic ground

Data clock line(SCL)

V.Sync(VCLK for DDC)

H.Sync / H+V

Serial data line(SDA)

Green video input

Red video input

(1)

1

10

6

11

15

5

H

-

x

+

V(Hz)

H(KHz)

Frequen

Sync polarity

Resolution

1024 x 768

1280 x 960

800 x 600

M08

M14

M02

M11

M17

M05

M12

M18

M06

M10

M16

M04

M09

M15

M03

M07

M13

M01

31.5

48.3

31.5

60

46.9

37.9

50.6

60.0

48.1

53.7

75

70

85

60

72

85

74.5

60

72.8

60

75

85

100

75

70

60

70

49.7

31.47

37.5

56.5

43.3

Mode

VESA

VGA

832 x 624

640 x 480

640 x 350

720 x 400

Power Management Definition

Active

Amber

Yellow

Green

Yellow

Blanked

<8W

88 %

85 %

0%

<10W

<65W

Suspend

ON

OFF

No

Yes

Stand-by

V-SYNC

POWER

SAVING( % )

POWER

USED

LED

COLOR

H-SYNC

VIDEO

VESA's mode

This monitor is Environmental Protection Agency (EPA) Energy Star

compliant and TCO'99 power management compatible.

*Zero power consumption in OFF mode can only be achieved by

disconnecting the mains cable from the monitor.

is a U.S. registered mark.

DELL Computer Corporation

ENERGY STAR AS AN ENERGY STAR PARTNER,

HAS DETERMINED THAT THIS PRODUCT MEETS

THE ENERGY STAR GUIDELINES FOR ENERGY EFFICIENCY.

R

If you have VESA's DPMS compliance display card or software

installed in your PC, the monitor can automatically reduce is

power consumption when not in use. And if an input from

keyboard, mouse or other input devices is detected, the monitor

will automatically "wake up". The following table shows the

power consumption and signaling of this automatic power

saving feature :

Automatic Power Saving

Data Storage

Factory preload mode:

This monitor has 12 factory-preload modes as indicated in the

following table :

Data Storage

Factory preset mode:

This monitor has 6 factory-preset modes as indicated in the

following table :

Technical Specification*

CRT

57%

Phosphor : P22

Recommended display

area : 10.6"x7.95"/270 x 202 mm

Maximum display area : 11.2"x8.4"/284 x 213 mm

Scanning

Horizontal scanning : 30 - 60 KHz

Vertical : 50 - 120 Hz

Video

Video dot rate : 108 Mhz

Input impedance

-Video : 75 Ohm

- Sync : 2.2 kOhm

Input signal levels : 0.7Vpp

Separate sync

Size and deflection :15 inch/36cm,90 defection angle

Dot pitch/Grille pitch : 0.28mm

Horizontal pitch : 0.24mm

Tube type : Shadow mask,flat square, high

contrast, antiglare, anti-static,

anti-refleection, light transmission

O

scanning

Sync input signal : Composite sync

Sync polarities : Positive and negative

White Color Temperature

Chromaticity CIE coordinates:

at 9300 k x = 0.283 y = 0.297

at 6500 k x = 0.313 y = 0.329

Power Management

Complies with EPA Energy Star and NUTEK specifications

Typical operation : 75 W

Suspend/Standby Mode : < 10 W

Off Mode :<8W

Physical Specifications

Dimensions : 358x370x379mm(including base)

358x335x379mm(excluding base)

Net weight : 12.0 Kg

Power supply : 90 - 264 VAC, 50/60HZ

Power consumption : 105 Watt

Operating condition

Temperature : 0 C - 40 C

Relative Humidety :5%-95%

Storage condition

Temperature : - 25 C - 65 C

Relative Humidity :5%-95%

o

OO

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Installation

4

105S2 CM23 GSIII

Front View

Power button switches your monitor on.

OK button which when pressed will take you to the OSD

controls

Contrast hotkey. When the UP arrow is pressed, the

adjustment controls for the CONTRAST will show up.

UP and DOWN buttons are used when adjusting the OSD of

your monitor

Brightness hotkey. When both the LEFT and RIGHT arrows

are pressed at the same time, then the adjustment controls for

BRIGHTNESS will show up.

LEFT and RIGHT buttons, like the UP and DOWN buttons, are

also used in adjusting the OSD of your monitor.

Rear View

1. Power in - attach power cable here.

2. Video In - this is a cable which is already attached to your monitor.

Connect the other end of the cable to your PC.

On-Screen Display

Description of the On-Screen Display The OSD

Tree The OSD Controls

Description of the On Screen Display

This is a feature in all Philips monitors which allows an

end-user to adjust screen performance of monitors

directly though an on-screen instruction window. The user

interface provides user-friendliness and ease-of-use

when operating the monitor.

On the front controls of your monitor, once you press the

button, the On Screen Display (OSD) Main Controls

window will pop up and you can now start making

adjustments to your monitor's various features. Use the

or the keys to make your adjustments within.

What is the On-Screen Display?

Basic and simple instruction on the control keys.

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OSD menu tree structure

5

105S2 CM23 GSIII

The OSD Tree

Below is an overall view of the structure of the On-

Screen Display. You can use this as reference when you

want to later on work your way around the different

adjustments.

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105S2 CM23 GSIII

OSD Adjustments

The OSD Controls

BRIGHTNESS

To adjust your screen's brightness, follow the steps below. Brightness is

the overall intensity of the light coming from the screen. A 50%

brightness is recommended.

1) Press the or button on the monitor. The BRIGHTNESS window

appears.

2) Press the or button to adjust the brightness.

3) When the brightness is adjusted to the level desired, stop pressing

the or button and after three seconds the BRIGHTNESS window

will disappear with the new adjustment saved.

After the BRIGHTNESS window has disappeared, to

continue to the CONTRAST window, follow the steps under

CONTRAST.

CONTRAST

To adjust your screen's contrast, follow the steps bellow. Contrast is the

difference between the light and dark areas on the screen. A 100%

contrast is recommended.

1) Press the or button on the monitor. The CONTRAST window

appears.

2) Press the or button to adjust the contrast.

3) When the contrast is adjusted to the level desired, stop pressing the

or button and after three seconds the CONTRAST window will

disappear with the new adjustment saved.

After the CONTRAST window has disappeared, to

continue to the MAIN CONTROLS, follow the steps under LANGUAGE

Smart Help

LANGUAGE

The ON SCREEN DISPLAY shows its settings in one of five languages.

The default is English, but you can select French, Spanish, German, or

Italian.

1) Press the button on the monitor. The MAIN CONTROLS window

appears. LANGUAGE should be highlighted.

2) Press the button again. The LANGUAGE window appears.

3) Press the or button until the desired language is highlighted.

4) Press the button to confirm your selection and return to MAIN

CONTROLS window. CLOSE MAIN CONTROLS will be highlighted...

After returning to MAIN CONTROLS...

...tocontinue to INPUT SIGNAL SELECTION, press the button until

INPUT SIGNAL SELECTION is highlighted. Next, follow steps3-5

under INPUT SIGNAL SELECTION.

...toexit completely, press the button

Smart Help

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105S2 CM23 GSIII

OSD Adjustments

ZOOM

ZOOM increases or decreases the size of the images on your screen.

To adjust the ZOOM follow the steps below.

1) Press the button on the monitor. The MAIN CONTROLS window

appears.

2) Press the --button until ZOOM is highlighted.

3) Press the button. The ZOOM window appears.

4) Press the or button to adjust ZOOM.

5) Press the button to confirm your selection and return to the MAIN

CONTROLS window. CLOSE MAIN CONTROLS will be highlighted.

After returning to MAIN CONTROLS...

...tocontinue to ADJUST HORIZONTAL, press the button until

ADJUST HORIZONTAL is highlighted. Next, follow steps3-7under

ADJUST HORIZONTAL.

...toexit completely, press the button

ADJUST HORIZONTAL

ADJUST POSITION under ADJUST HORIZONTAL shifts the image on

your screen either to the left or right. Use this feature if your image

does not appear centered. ADJUST SIZE under ADJUST

HORIZONTAL expands or controls the image on your screen, pushing it

out toward the left and right sides or pulling it in toward the center.

1) Press the button on the monitor. The MAIN CONTROLS window

appears.

2) Press the button until ADJUST HORIZONTAL is highlighted.

Smart Help

3) Press the button. The ADJUST HORIZONTAL window appears.

ADJUST POSITION should be highlighted.

4) Press the or button to move the image to the left or right.

5) When the position is adjusted, press the button to return to MAIN

CONTROLS window, or press the to highlight ADJUST SIZE.

6) To adjust the horizontal size, press the or button.

7) When the size is adjusted, press the button to return to MAIN

CONTROLS window. CLOSE MAIN CONTROLS will be highlighted.

After returning to MAIN CONTROLS...

...tocontinue to ADJUST VERTICAL, press the button until ADJUST

VERTICAL is highlighted. Next, start with step 3 under ADJUST

VERTICAL and follow the directions.

...toexit completely, press the button

ADJUST VERTICAL

ADJUST POSITION under ADJUST VERTICAL shifts the image on

your screen either up or down. Use this feature if your image does not

appear centered. ADJUST SIZE under ADJUST VERTICAL expands or

controls the image on your screen, pushing it out toward the top or

bottom or pulling it in toward the center.

1) Press the button on the monitor. The MAIN CONTROLS window

appears.

Smart Help

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8

105S2 CM23 GSIII

OSD Adjustments

2) Press the button until ADJUST VERTICAL is highlighted.

3) Press the button. The ADJUST VERTICAL window appears.

ADJUST POSITION should be highlighted.

4) Press the or button to move the image up or down.

5) When the position is adjusted, press the button to return to MAIN

CONTROLS window, or press the to highlight ADJUST SIZE.

6) To adjust the vertical size, press the or button.

7) When the size is adjusted, press the button to return to MAIN

CONTROLS window. CLOSE MAIN CONTROLS will be highlighted.

After returning to MAIN CONTROLS...

...tocontinue to ADJUST SHAPE, press the button until ADJUST

SHAPE is highlighted. Next, start with step 3 under ADJUST SHAPE

and follow the directions.

...toexit completely, press the button

ADJUST SHAPE

ADJUST SIDE CURVE

ADJUST SIDE CURVE under ADJUST SHAPE allows you to adjust two

of the five preset options. These two options are PINCUSHION and

BALANCED pincushion. Note: use these features only when the picture

is not square.

1) Press the button on the monitor. The MAIN CONTROLS window

appears.

Smart Help

2) Press the button until ADJUST SHAPE is highlighted.

3) Press the button. The ADJUST SHAPE window appears. ADJUST

SIDE CURVE should be highlighted.

4) Press the button. The SIDE CURVE window appears.

PINCUSHION should be highlighted.

5) To adjust the pincushion, press the or button.

6) When the pincushion is adjusted, press the button to highlight

BALANCED or press the button to return to the ADJUST SHAPE

window.

7) To adjust the balanced pincushion, press the or button.

8) When the balanced pincushion is adjusted, press the button to

return to the ADJUST SHAPE window. BACK TO MAIN WINDOWS will

be highlighted.

9) Press the button to return to the MAIN CONTROLS window, or

press the button until ADJUST SIDE ANGLES is highlighted.

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105S2 CM23 GSIII

OSD Adjustments

Smart Help After returning to MAIN CONTROLS...

...to continue to ADJUST SIDE ANGLES, start with step 5 under

ADJUST SIDE ANGLES and follow the directions.

...to exit completely, press the button twice.

...to adjust only the BALANCED pincushion, follow steps1-4above,

then press the button, and follow steps7-9.

...to adjust only the PARALLELOGRAM, follow steps1-4above, then

press the button, and follow steps 7 -9

ADJUST SIDE ANGLES

ADJUST SIDE ANGLES under ADJUST SHAPE allows you to adjust

two of the five preset options. These two options are TRAPEZOID and

PARALLELOGRAM. Note: use these features only when the picture is

not square.

1) Press the button on the monitor. The MAIN CONTROLS window

appears.

2) Press the button until ADJUST SHAPE is highlighted.

3) Press the button. The ADJUST SHAPE window appears. ADJUST

SIDE CURVE should be highlighted.

4) Press the button to highlight ADJUST SIDE ANGLES.

5) Press the button. The SIDE ANGLES window appears.

TRAPEZOID should be highlighted.

6) To adjust the trapezoid, press the or button.

SHAPE window.

7) When the trapezoid is adjusted, press the button to highlight

PARALLELOGRAM or press the button to return to the ADJUST

8) To adjust the parallelogram, press the or button.

9) When the parallelogram is adjusted, press the button to return to

the ADJUST SHAPE window. BACK TO MAIN WINDOWS will be

highlighted.

10) Press the button to return to the MAIN CONTROLS window, or

press the button until ROTATE IMAGE is highlighted.

After returning to MAIN CONTROLS...

...to continue to ROTATE IMAGE, start with step 5 under ROTATE

IMAGE and follow the directions.

...to exit completely, press the button twice.

...to adjust only the PARALLELOGRAM, follow steps1-4above, then

press the button, and follow steps 7 -9

ROTATE IMAGE (Not available in all models)

ROTATE IMAGE under ADJUST SHAPE allows you to adjust one of

the five preset options. These two options are PINCUSHION and

BALANCED pincushion. Note: use this feature only when the picture is

not square.

1) Press the button on the monitor. The MAIN CONTROLS window

appears.

2) Press the button until ADJUST SHAPE is highlighted.

3) Press the button. The ADJUST SHAPE window appears. ADJUST

SIDE CURVE should be highlighted.

4) Press the arrow until ROTATE IMAGE is highlighted.

Smart Help

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105S2 CM23 GSIII

OSD Adjustments (Continued)

5) Press the button. The ROTATE IMAGE window appears. ROTATE

should be highlighted.

6) To adjust the rotation, press the or button.

7) When the rotation is adjusted, press the button to return to the

ADJUST SHAPE window. BACK TO MAIN CONTROLS should be

highlighted.

8) Press the button to return to MAIN CONTROLS.

After returning to MAIN CONTROLS...

...tocontinue to ADJUST COLOR, press the button until ADJUST

COLOR is highlighted. Next, start with step 3 under ADJUST COLOR

and follow the directions.

...to exit completely, press the button twice.

ADJUST COLOR

Your monitor has two preset options you can choose from. The first

option is for GENERAL USE, which is fine for most applications. The

second option is for GAMES, which is for playing computer games.

When you select one of these options, the monitor automatically adjusts

itself to that option. There is also a third option, USER PRESET, which

allows you to adjust the colors on your screen to a setting you desire.

1) Press the button on the monitor. The MAIN CONTROLS window

appears.

2) Press the button until ADJUST COLOR is highlighted.

3) Press the button. The ADJUST COLOR window appears.

Smart Help

4) Press the or button to highlight 9300K for GENERAL USE,

6500K for GAMES, or USER PRESET.

5) Once you have highlighted GENERAL USE or GAMES, press the

button to confirm you selection and return to the MAIN CONTROLS

window. CLOSE MAIN CONTROLS will be highlighted.

6a) ?If USER PRESET is highlighted, press the button to highlight

RED. Next, press the LEFT CURSOR or RIGHT CURSOR button to

adjust the color red.

6b) ?When finished with RED, press the button to highlight GREEN.

Next, press the or button to adjust the color green.

6c) ?When finished GREEN, press the button to highlight BLUE. Next,

press the or button to adjust the color blue.

6d) ?When all adjustments are complete, press the button to confirm

your adjustments and return to the MAIN CONTROLS window. CLOSE

MAIN CONTROLS will be highlighted.

After returning to MAIN CONTROLS. . .

...tocontinue to RESET TO FACTORY SETTINGS, press the button

until RESET TO FACTORY SETTINGS is highlighted. Next, start with

step 3 under RESET TO FACTORY SETTINGS.

...toexit completely, press the button.

RESET TO FACTORY SETTINGS

RESET TO FACTORY SETTINGS returns everything in all the windows

to factory presets.

1) Press the button on the monitor. The MAIN CONTROLS window

appears.

2) Press the button until RESET TO FACTORY SETTINGS is

highlighted.

3) Press the button. The RESET TO FACTORY SETTINGS window

appears.

Smart Help

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11

105S2 CM23 GSIII

OSD Adjustments (Continued)

4) Press the or button to select YES or NO. NO is the default. YES

returns all settings to their original factory adjustments.

5) Press the button to confirm your selection and return to the MAIN

CONTROLS window. CLOSE MAIN CONTROLS will be highlighted.

After returning to MAIN CONTROLS...

...tocontinue to EXTRA CONTROLS, press the button until EXTRA

CONTROLS is highlighted. Next, start with step 3 under EXTRA

CONTROLS.

...toexit completely, press the button.

EXTRA CONTROLS

DEGAUSS

EXTRA CONTROLS is a set of three features, including DEGAUSS.

Degaussing removes electromagnetic build up that may distort the color

on your screen.

1) Press the button on the monitor. The MAIN CONTROLS window

appears.

2) Press the button until EXTRA CONTROLS is highlighted.

3) Press the button. The EXTRA CONTROLS window appears.

DEGAUSS will be highlighted.

4) To degauss your screen, press the button. Your screen will be

degaussed, then the MAIN CONTROLS window will reappear. CLOSE

MAIN CONTROLS will be highlighted.

After returning to MAIN CONTROLS...

...tocontinue to ADJUST MOIRE, press the button until EXTRA

CONTROLS is highlighted. Next, start with step 3 under EXTRA

CONTROLS, ADJUST MOIRE.

...toexit completely, press the button.

Smart Help

ADJUST MOIRE (Not available in all models)

EXTRA CONTROLS is a set of three features, including ADJUST

MOIRE. Moire is a fringe pattern arising from the interference between

two superimposed line patterns. To adjust your moire, follow the steps

below. Note: Use only if necessary. By activating ADJUST MOIRE,

sharpness can be affected.

1) Press the button on the monitor. The MAIN CONTROLS window

appears.

2) Press the DOWN CURSOR button until EXTRA CONTROLS is

highlighted.

3) Press the button. The EXTRA CONTROLS window appears.

DEGAUSS will be highlighted.

4) Press the button until ADJUST MOIRE is highlighted.

5) Press the button. The ADJUST MOIRE window appears.

HORIZONTAL will be highlighted.

6) To adjust the horizontal moire, press the or button.

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12

105S2 CM23 GSIII

OSD Adjustments (Continued)

7) When the horizontal moire is adjusted, press the button to highlight

VERTICAL.

8) To adjust the vertical moire, press the or button.

9) When the vertical moire is adjusted, press the button to return to

the EXTRA CONTROLS window. BACK TO MAIN CONTROLS will be

highlighted.

After returning to MAIN CONTROLS...

...toexit completely, press the button.

CLOSE MAIN CONTROLS

Smart Help

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13

105S2 CM23 GSIII

Warning and Notes

3.3 Be careful when taking measurements in the high-voltage section

and on the picture tube panel.

3.4 Never replace modules or other components while the unit is

switched on.

3.5 When making settings, use plastic rather than metal tools.

This will prevent any short-circuit and the danger of a circuit becomes

unstable.

3.6 After repair the wiring should be fastened once more in the cable

clamps for this purpose.

3.7 Together with the deflection unit the picture tube is used as

an integrated unit. Adjustment of this unit during repair is

therefore not recommended.

The semiconductors indicated in the circuit diagram(s) and in the

parts lists are completely interchangeable per position with the

semiconductors in the unit, irrespective of the type indication on

these semiconductors.

4. Notes

Fig. 3.1

V

1. Safety Instructions for Repairs

2. Maintenance Instructions

3. Warnings

1.1 Safety regulations require that during a repair:

- The set should be connected to the mains via an isolating

transformer.

- Safety components, indicated by the symbol , should be

replaced by components identical to the original ones.

- When replacing the CRT, safety goggles must be worn.

1.2 Safety regulations require also that after a repair:

- The set should be returned in its original condition.

- The cabinet should be checked for defects to avoid touching, by the

customer, of inner parts.

- The insulation of the mains lead should be checked for external

damage.

- The mains lead strain relief should be checked on its function.

- The cableform and EHT cable are routed correctly and fixed with the

mounted cable clamps in order to avoid touching of the CRT, hot

components or heat sinks.

* Thermally loaded solder joints should be checked and resoldered

where necessary. This includes components like LOT, the line

output transistor, fly-back capacitor.

It is recommended to have a maintenance inspection carried out

periodically by a qualified service employee. The interval depends on

the usage conditions.

- During the maintenance inspection the above mentioned "safety

instructions for repair" should be carried out The power supply

and deflection circuitry on the chassis, the CRT panel and the

neck of the CRT should be cleaned.

When cleaning the monitor on the outside:

- Always disconnect the monitor from the mains.

- Always use a damp AND NOT WET lint-free cloth.

- To clean the screen, apply a household glass cleaner to a cloth

and then wipe the screen.

- Do not use solvents or abrasives on the monitor.

It might discolour the cabinet and/or affect the anti glare

treatment on your screen.

3.1 In order to prevent damage to ICs and transistors, all high-

voltage flash-overs must be avoided. In order to prevent damage to

the picture tube, the method shown in Fig 3.1 should be used to

discharge the picture tube. Use a high-voltage probe and a

multimeter (position DC-V). Discharge until the meter reading is 0V

(after approx 30s).

3.2ESD

All ICs and many other semiconductors are sensitive to electrostatic

discharges (ESD). Careless handling during repair can drastically

shorten the life. Make sure that during repair you are connected by a

pulse band with resistance to the same potential as the earth of the

unit. Keep components and tools also at this same potential.

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14

Mechanical Instructions

105S2 CM23 GS III

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lid

Fig.8 SERVICE POSITION

Fig.1

screws

Fig.2

Fig.3

Fig.5

Fig.4

screw

"1604"

Main panel

Control panel

Metal shield - bottom

Fig.6

Fig.7

0. General

1.Remove the rear cover

2. Video panel

3. Main panel

4. Front control panel

5. Service position

To be able to perform measurements and repairs on the "circuit

boards", these unit should placed in the service position first.

-Open 2 lids ( with "-" type

screwdriver as shown in Fig. 1.

-Remove 4 screws with "+" type screwdriver as shown in Fig 2,3.

-Rear cover can be removed by hand easily now .

a.Cut off cable ties (If it is necessary for repair.)

b.Remove a screw as shown in Fig. 4.

c.Disconnect "1604" as shown in Fig. 4.

d.Remove video panel (ass'y) from CRT neck as shown in Fig. 5.

- Disconnect the degaussing coil (1112)from Main panel.

- Remove the video panel from CRT.

- Remove the "screw" of I/F cable from Main panel.

- Disconnect the CRT ground "1703" from Video panel.

- Disconnect the Hi-Pot cap from CRT.

- Disconnect yoke wire "1601" from Main panel.

- Disconnect cancellation connector(1113).

- Slide the Main panel out of bottom tray as shown in Fig. 6.

- Remove Front panel as shown in Fig. 7.

- Reconnect yoke wire to "1601".

- Reconnect cancellation connector(1113).".

- Mount Video panel again on CRT.

- Reconnect Hi-Pot cap again.

- Reconnect CRT ground "1703" again.

- Reconnect "1604" again

right and left lid on the Rear cover)

- Slide out Main panel a little bit as shown in Fig. 6.

- Disconnect "1820" from Main panel.

- Disconnect "1821" from Main panel.

- Place Main panel in service position as shown in Fig.8.

- Reconnect "1820" from Control panel to Main panel.

- Reconnect "1821" from Control panel to Main panel.

15

105S2 CM23 GSIII

Wiring diagram

1601

1604

TO VIDEO PCB ASS'Y 1703

TO 1113

TO 1112

1

4

KEY CNTR PCB ASS'Y

1

9

6

8704

1301

13

1

8702

1712

1703

1

17

16

32

7301

1

4

8703

1112

1

4

8502

8501

9

1

6

8401

7801

1821

1

2

1

4

8891

7806

TO VIDEO SHIELD -TOP

POINT A

FOR C.P.T

CRT ONLY

1820

1113

3

1

TO 1601

SOLDERING

VIDEO SHIELD -TOP

A

VIDEO SHIELD -BOTTOM

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DDC Instructions

16

105S2 CM23 GSIII

1. General

3. Pin assignment

Fig. 2 Alignment Kits

A. 15-pin D-Sub Connector

DDC Data Re-programming

In case the main EEPROM with which store all factory

settings were replaced because a defect,repaired monitor the serial

numbers have to be re-programmed.

It is advised to re-soldered the main EEPROM from the old board onto

the new board if circuit board have been replaced, in this case the DDC

data does not need to be re-programmed.

Additional information

Additional information about DDC (Display Data Channel) may be

obtained from Video Electronics Standards Association (VESA).

Extended Display Identification Data(EDID) information may be also

obtained from VESA.

DDC EDID structure

For the monitor : Standard Version 3.0

Structure Version 1.2

1. An i486 (or above) personal computer or compatible.

2. Microsoft operation system Windows 95/98.

4. Software DDC Alignment kits (4822 310 11184) shown as Fig. 2.

The kit contents: a. Alignment box x1

b. Printer cable x1

c. D-Sub cable x1

Note: The EDID301.EXE (Release Version 1.55,)is a windows-

based program, which cannot be run in MS-DOS.

Software DDC

3. EDID301.EXE program (3138 106 10103) shown as Fig. 1

2. System and equipment requirements

Diskette with EDID301.EXE

EDID301.EXE

Figure 1

1

10

6

11

15

5

Assignment

Pin No.

Identification output -

Connected to pin 10

Identification output -

Connected to pin 10

Blue video input

2

7

6

8

4

5

3

1

9

12

11

14

13

15

10

Red video ground

Blue video ground

Green video ground

Ground

No pin

Logic ground

Data clock line(SCL)

V.Sync(VCLK for DDC)

H.Sync

Serial data line(SDA)

Green video input

Red video input

The 15-pin D-sub connector (male) of the signal cable

on the 3rd row for DDC feature :

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17

DDC Instructions

105S2 CM23 GSIII

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4. Configuration and procedure

Following descirptions are the connection and procedure for Software

DDC, the main EEPROM can be re-programmed with Software DDC

by enabling "factory memory data write" function on the DDC program

(EDID301.EXE).

5. DDC re-programming instructions

Start on DDC program

Start Microsoft Windows.

1. Insert the disk containing EDID301.EXE program into floppy disk

drive.

2. Click , choose Run at start menu of Windows 95/98.

3. At the submenu, type the letter of your computer's floppy disk drive

followed by :EDID301 (for example, A:\EDID301, as shown in Fig. 2).

Fig. 2

Initialize alignment box

In order to avoid that monitor entering power saving mode due to

sync will cut off by alignment box, it is necessary to initialize

alignment box before running programming software

(EDID301.EXE). Following steps show you the procedures and

connection.

Step 1: Supply 8~12V DC power source to the Alignment box by

plugging a DC power cord or using batteries.

Step 2: Connecting printer cable and video cable of monitor as Fig. A

Step 3: Run the EDID301.EXE program until the main menu appears.

This is for initialize alignment box.

Re-programming Software DDC

Step 1: After initialize alignment box, connecting all cables and box as

Fig. 1

Step 2: Follow the steps on DDC re-programming instructions to starting

re-programming.

PC

To video card

To printer port (LTP1)

DC Power

8~12 V

Printer

Port

To

Monitor

To P C

Rear view of the monitor

Video cable

Rear view of the monitor

PC

To printer port (LTP1)

DC Power

8~12 V

Fig. A

To video card

Video cable

ô

Step 4: Press and button when turn on the monitor, to enter factory

mode.

18

DDC Instructions

105S2 CM23 GSIII

Loading DDC data from monitor

1. Click icon on the tools bar to bring up the Configuration Setup

windows as Fig.4

2. Select the DDC2B as the communication channel.

3. Enable Factory memory data write function and fill in page address

F"F0" to the block.

4.. Click button to confirm your selection.

Note: At this moment, please don't enable"software DDC only" function

yet.

4. Click button. The main menu appears (as shown on Fig. 3).

Fig. 3

Note: If the connection is improper, you will see the following error

message before entering the main menu. Meanwhile, the

(read EDID) function will be disable. At this time, please make

sure all cables are connected correctly and fixedly, and the

procedure has been performed properly.

5. Click icon to read DDC EDID data from monitor. The EDID

codes will display on screen as following. (The EDID codes are

dependent on the model.)

Command bar

Tools bar

Fig. 4

Modify DDC data (Serial No.)

1. Click icon on the toosl bar.

2. Click till the Step 7 of 9 window appears.

3. Type the new Serial No. (for example, TY 123456).

4. Click till the last step window appears, then click to

exit the Step window.

Note: During the loading, EDID301 will verify the EDID data which just

loaded from monitor before proceed any further function, once

the data structure of EDID can not be recognized, the following

error message will appear on the screen (Fig. 5). Please confirm

following steps to avoid this message.

1. The data structure of EDID was incorrect.

2. Software DDC Data that you are trying to load data is empty.

3. Wrong communication channel has set at configuration setup

windows.

4. Cables loosed or poor contact of connection.

.

Fig. 5

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DDC Instructions

19

105S2 CM23 GSIII

Exit DDC program

1. Click file command on the command bar then select Exit.

Load DDC data from file

1. Click from the tools bar.

2. Select the file you want to open.

3. Click . Button.

Write DDC data to monitor

1. Enable " software DDC" function at configuration setup windows.

2. Click icon from the tools bar to starting rewrite DDCdata.

3. Click for confirmation.

Save DDC data as a file

Sometimes, you maybe need to save DDC data as a text file for using

on other DDC chip. To save DDC data, follow the steps below:

1. Click icon on the tools bar and type a file name you like. The

file format is ddc type which can be open by Microsoft WordPad.

2. Click button.

Definition of Serial Number

TY009928000001

Serial Number (U.S.A: 8 digit)

Week

Year

TY Code

TY----Chungli

CX----Dong Guan

HD----Hungary

BZ----Suzhou

(Others regions: 6 digit)

4. Now you can re-programming DDC data which you just loaded

from a file, please be confirmed that model and serial number are

correct and match with the monitor you are trying to re-write.

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Philips 105S2 CM23 GSIII User manual

Philips 105S2 CM23 GSIII User manual

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